Malicious PDF — malware analysis report

Static analysis result for SHA-256 f170ef0efbe212ef…

MALICIOUS

PDF

39.8 KB Created: 2020-08-17 00:24:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb0bbbc50ab02558a493adfd9d986b41 SHA-1: a053bf0c527d22ab6a5117b79bbd0e7711211eff SHA-256: f170ef0efbe212ef864e983dc0920160c9a5044921a10283cbf4a1f941559461
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged for containing a malicious redirector link and a large number of external links, indicating a link farm. The primary malicious URL, https://ttraff.cc/pify?keyword=benaam+1974+movie+songs, is likely used to funnel victims to a phishing or malware site. The document body contains garbled text along with the malicious URL and several other PDF links, suggesting an attempt to obscure the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=benaam+1974+movie+songs
    • http://files.penderharbourheritage.ca/uploads/1/3/0/7/130776406/kasodalategoborim.pdf
    • https://cdn.shopify.com/s/files/1/0438/6796/3547/files/gewulej.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/20055026187.pdf
    • https://cdn.shopify.com/s/files/1/0433/6241/8837/files/migemegoja.pdf
    • https://cdn.shopify.com/s/files/1/0432/0880/2468/files/xekuros.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/sobujebimumafexire.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6261/files/61218232927.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/cambridge_ielts_10_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6965/9549/files/black_hole_sun_piano_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/0332/2261/files/95493754642.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047bb.bin
2310bb9d74187b20cea46ea7785fd6945838264cb4f76f4ce106d7cd7a9ba276		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47BB 5360 bytes
font_01_sfnt_off00005a04.bin
20fc9c33df40a5c67ab90bd89ebbd4bdb7c13601aa70263ec3e3ee25b891b8af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A04 10248 bytes
font_02_sfnt_off00007d3a.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3A 16164 bytes

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